77218232350 has 96 divisors (see below), whose sum is σ = 172853936640. Its totient is φ = 25091130240.

The previous prime is 77218232339. The next prime is 77218232383. The reversal of 77218232350 is 5323281277.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 833449 + ... + 921451.

It is an arithmetic number, because the mean of its divisors is an integer number (1800561840).

Almost surely, 2^77218232350 is an apocalyptic number.

77218232350 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

77218232350 is an abundant number, since it is smaller than the sum of its proper divisors (95635704290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77218232350 is a wasteful number, since it uses less digits than its factorization.

77218232350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88154 (or 88149 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 77218232350 in words is "seventy-seven billion, two hundred eighteen million, two hundred thirty-two thousand, three hundred fifty".